印刷车间对光是『挑剔到苛刻』的：颜色判读必须准，否则整批印品偏色；而普通照明频闪会让质检人员越看越花。
一般作业区 500lx、色彩检验区不低于 750-1000lx，显色指数 Ra≥90（对色建议≥95）并按 ISO 标准规定色温，UGR≤19、无频闪驱动保证长时间不疲劳。
曦韵为印刷厂配置标准光源对色灯与高显色无频闪灯具，让『印刷色、签样色、室内照明色』三者统一，减少返工与客户争议。
Printing halls are picky about light: colour judgement must be exact or whole runs shift, and ordinary flicker wears inspectors down.
General work 500 lx, colour inspection 750-1000 lx, Ra>=90 (>=95 for matching) at ISO standard colour temperature, UGR<=19 and flicker-free to avoid long-shift fatigue.
Xiyun installs standard-light viewing booths and high-CRI flicker-free fixtures so press colour, proof colour and ambient light agree, cutting rework and disputes.
— 上海曦韵照明｜Shanghai Xiyun Lighting —
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